It's another release day Tuesday, and while there's nothing out today on par with BioShock Infinite, both Dead Island Riptide and Star Trek PC downloads have a respectable 20% discount at Green Man Gaming. For our friends outside North America, the games won't release until Friday, April 26th, but you can still take advantage of the 20% off coupon, and with Dead Island Riptide you'll get the preorder exclusive Survivor Pack DLC bonus (xp/stat boost, BBQ Blade, and discount in-game weapons shop).

Groupon's got another gaming deal this week. Tomb Raider for the consoles is down to $40 - a new low by $2, and $5 off the current next best price. Until a month ago, this game never dropped below $48. This series reboot has garnered stellar reviews - both IGN's official and community ratings are currently above a 9, with the official review characterizing the title as "a greatly successful origin story, a series reboot that feels both authentic and hugely exciting". The deal runs through Thursday, or while supplies last.

Monday GamersGate launched their 2 week long PC Download Spring Sale. Dozens of games are on sale, with four new "Deals of the Day" refreshed daily and plenty of other bundle offers and weekly sales. The Tuesday-only offers are Red Orchestra 2: Heroes of Stalingrad Digital Deluxe Edition for $3.74,Final Fantasy XI: Ultimate Collection: Seekers Edition for $9.99, Front Mission Evolved for $4.99, and Tropico 4 Collectors Bundle for $12.49. Other notable deals are The Cave for $5.10 and Alpha Protocol for $3.74 - both are normally $14.99.

Next best is $20 at Green Man Gaming. Deal expires April 25. Worth mentioning, since this ties the lowest ever price we saw last week at GameStop. Simliar discounts on Dawnguard for $9.99 (normally $20) and Hearthfire for $2.50 (normally $5), also at GameFly.